this morning, joe biden was sworn in by sotomayor. then there was the wreath laying ceremony. and the first couple also attended the episcopal church for martin luther king celebration. >> reporter: when a president and vice president are sworn in it's only for a four year term so if they're reelected they needed to be sworn in for a second four year term. reporting from washington, d.c., i'm tori campbell, ktvu news. >>> more details on predictions. aides say the president is taking the challenge of a second term very seriously and that he's still working on his speech. they expect him to strike a balance between calling for unity and admitting that not all issues can be resolved. and while mr. obama will announce his vision for the country he'll likely save details for his state of the union speech to congress. >>> veteran news woman barbara walters was hospitalized last night following a fall at an inaugural ball. walter was at an event when she fell and suffered a hit to the heat. there's no word yet on when she might be released. >>> our coverage continues at 10:30. we'll